Temp script?

Wanting name brand but wonder if anyone’s done a bridge script before and if it’s okay? Like I get part of my script in generic so it can be filled because it’s in stock while they order brand name Zenzedi? I don’t want to run out while waiting so wonder if that’s even possible. Like get a week of generic dosing and the rest of the month in Zenzedi?

Is that an issue at most places in the states?